title: [A retrospective analysis of adverse events based on a dose and a schedule in patients who underwent paclitaxel- containing chemotherapy].
abstract: The major toxicities associated with paclitaxel(PTX)-based chemotherapy are myelosuppression, peripheral neuropathy and myalgia/arthralgia. In the present study, a retrospective study was carried out to compare the incidence of adverse events during PTX-based chemotherapy between 58 cases treated every 3 weeks(tri-weekly regimen)for breast cancer and non-small cell lung cancer and 47 cases with weekly regimen for breast cancer and gastric cancer. Hematological toxicity such as neutropenia and thrombocytopenia, peripheral neuropathy and myalgia/arthralgia occurred more frequently in patients with a tri-weekly regimen than in those with a weekly regimen(grade 3/4 neutropenia: 65.5% versus 12.8%, odds ratio; 12.98, grade 2/3 peripheral neuropathy: 24.1% versus 6.4%, odds ratio; 4.67, and grade 2/3 myalgia/arthralgia: 43.1% versus 4.3%, odds ratio; 17.05). The development of peripheral neuropathy and myalgia/arthralgia was dependent on the dose per injection, but not on the cumulative dose of PTX. The initial onset of peripheral neuropathy and myalgia/arthralgia was observed in more than 80% of patients during the first course of the tri-weekly regimen, while it was seen in any course of the weekly regimen. The incidence of other nonhematological adverse events was not different between the two regimens except for nausea. Our present findings suggest that the peripheral neuropathy and myalgia/arthralgia are highly frequent adverse events that depend on the dose per injection of PTX, in which the incidence was more frequent in the tri-weekly than in the weekly regimen.
authors.affiliation: Department of Pharmacy, Ogaki Municipal Hospital.
authors.forename: Tomoaki
authors.initials: T
authors.lastname: Yoshimura
authors.forename: Kouseki
authors.initials: K
authors.lastname: Hirade
authors.forename: Hirotoshi
authors.initials: H
authors.lastname: Iihara
authors.forename: Masashi
authors.initials: M
authors.lastname: Ishihara
authors.forename: Yoshifumi
authors.initials: Y
authors.lastname: Komori
authors.forename: Shinji
authors.initials: S
authors.lastname: Okayasu
authors.forename: Katsuhiko
authors.initials: K
authors.lastname: Matsuura
authors.forename: Tadashi
authors.initials: T
authors.lastname: Yasuda
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Itoh
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000970:Antineoplastic Agents / Q000009:adverse effects* / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017239:Paclitaxel / Q000008:administration & dosage* / Q000009:adverse effects* / Q000627:therapeutic use; D012189:Retrospective Studies; D013997:Time Factors
chemical_list: D000970:Antineoplastic Agents; D017239:Paclitaxel